Global Patent Index - EP 3751264 A3

EP 3751264 A3 20210421 - CARBON DIOXIDE GAS SENSOR

Title (en)

CARBON DIOXIDE GAS SENSOR

Title (de)

KOHLENDIOXIDGASSENSOR

Title (fr)

CAPTEUR DE GAZ DE DIOXYDE DE CARBONE

Publication

EP 3751264 A3 20210421 (EN)

Application

EP 20176549 A 20200526

Priority

JP 2019111312 A 20190614

Abstract (en)

A highly stable gas sensor capable of detecting carbon dioxide is provided. A carbon dioxide gas sensor includes an insulating substrate and a gas sensing layer formed on one major surface of the insulating substrate via electrodes, in which the gas sensing layer comprises one or more rare earth oxides represented by Ln<sub>2</sub>O<sub>3</sub>, Ln being at least one rare earth metal element selected from Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Pr, Yb and Lu, and a method for producing the gas sensor are provided.

IPC 8 full level

G01N 27/12 (2006.01); C01F 17/00 (2020.01); C22B 59/00 (2006.01); G01N 33/00 (2006.01)

CPC (source: CN EP US)

C01F 17/206 (2020.01 - EP); C01F 17/224 (2020.01 - EP); C01F 17/235 (2020.01 - EP); G01N 27/125 (2013.01 - CN EP); G01N 27/4074 (2013.01 - US); G01N 33/004 (2013.01 - EP US); C01P 2002/76 (2013.01 - EP)

Citation (search report)

  • [X] US 2009148347 A1 20090611 - LEE SU JAE [KR], et al
  • [X] US 5993624 A 19991130 - MATSUBARA SHOGO [JP], et al
  • [X] US 2016334359 A1 20161117 - KIM IL-DOO [KR], et al
  • [I] US 4432948 A 19840221 - HEYTMEIJER HERMAN R [US]
  • [I] JP 2007229558 A 20070913 - UNIV OSAKA
  • [X] MICHEL CARLOS R ET AL: "Gas sensing properties of Gd2O3microspheres prepared in aqueous media containing pectin", SENSORS AND ACTUATORS B: CHEMICAL, ELSEVIER BV, NL, vol. 177, 23 November 2012 (2012-11-23), pages 390 - 396, XP028964107, ISSN: 0925-4005, DOI: 10.1016/J.SNB.2012.11.018
  • [X] PYNGROPE D ET AL: "Synthesis, Characterization and Comparative Luminescence Studies of Rare-Earth-Doped Gd2O3Nanoparticles", JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, ASM INTERNATIONAL, MATERIALS PARK, OH, US, vol. 27, no. 6, 20 April 2018 (2018-04-20), pages 2754 - 2758, XP036525933, ISSN: 1059-9495, [retrieved on 20180420], DOI: 10.1007/S11665-018-3367-X

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3751264 A2 20201216; EP 3751264 A3 20210421; CN 112083045 A 20201215; JP 2020204490 A 20201224; US 2020393431 A1 20201217

DOCDB simple family (application)

EP 20176549 A 20200526; CN 202010455119 A 20200526; JP 2019111312 A 20190614; US 202016884933 A 20200527